Documentation/devicetree/bindings/auxdisplay/img,ascii-lcd.yaml

   1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/auxdisplay/img,ascii-lcd.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: ASCII LCD displays on Imagination Technologies boards
   8
   9 maintainers:
  10   - Paul Burton <paulburton@kernel.org>
  11
  12 properties:
  13   compatible:
  14     enum:
  15       - img,boston-lcd
  16       - mti,malta-lcd
  17       - mti,sead3-lcd
  18
  19   reg:
  20     maxItems: 1
  21
  22   offset:
  23     $ref: /schemas/types.yaml#/definitions/uint32
  24     description:
  25       Offset in bytes to the LCD registers within the system controller
  26
  27 required:
  28   - compatible
  29
  30 oneOf:
  31   - required:
  32       - reg
  33   - required:
  34       - offset
  35
  36 if:
  37   properties:
  38     compatible:
  39       contains:
  40         const: img,boston-lcd
  41 then:
  42   required:
  43     - reg
  44 else:
  45   required:
  46     - offset
  47
  48 additionalProperties: false
  49
  50 examples:
  51   - |
  52     lcd: lcd@17fff000 {
  53             compatible = "img,boston-lcd";
  54             reg = <0x17fff000 0x8>;
  55     };